FSA (Full Speed Ahead) ACR Stem - 70mm, 31.8 Clamp, +/-6, Black Freewheels and 6mm bits that fit

and 6mm bits that fit into the ball detent swivel head that is also an 8mm hex bit

Manufacturer Part Number: 170-003-01

122208-Q0-L

Manufacturer Part Number: 11036-FT

145370-Q0-L

FSA (Full Speed Ahead) ACR Stem - 70mm, 31.8 Clamp, +/-6, Black Freewheels and 6mm bits that fitFSA ACR (Aerodynamic Cable Routing) Stems have a low profile frontal area that is suitable for road and gravel riding. Aerodynamic Cable Routing (ACR) Low profile frontal area Body and faceplate crafted from 6061 T6 alloy with chromoly hardware Specific frame and headset required 31. 8mm handlebar clamp diameter 30mm fork clamp stack height Compatible with K Force Light ACR Compact, SL K ACR Compact, Energy ACR Compact, K Wing AGX and K Wing AGX